K-Factor
A transformer rating indicating ability to supply non-linear harmonic loads without exceeding temperature limits.
K-factor (UL 1561, IEEE C57.110) indicates capability for non-linear harmonic loads. Standard = K-1 (linear). K-rated transformers handle specific spectrums.
Ratings: K-4 (light electronics), K-13 (office/commercial), K-20 (industrial VFDs), K-50 (severe). Features: reduced flux, electrostatic shields, 200% neutral, enhanced cooling.
Our K-factor selection guide provides detailed methodology.
QDTB offers K-rated transformers K-4 to K-50 for commercial, industrial, data center. See industrial solutions for harmonic strategies.
Related Products
Related Terms
Harmonics
Integer multiples of fundamental frequency from non-linear loads, causing increased transformer losses and overheating.
Rectifier Transformer
A transformer designed to supply rectifier/inverter loads with enhanced harmonic and DC magnetization handling.
Eddy Current
Circulating currents induced in conductive materials by changing magnetic fields, causing energy losses in transformers.
More Terms Starting with “K”
kVA Rating
The apparent power rating of a transformer in kilovolt-amperes, determining load-carrying capacity.
Knee Point Voltage
The voltage at which a current transformer core begins to saturate, critical for protection CT performance.
Kidney Loop Filtration
An online oil purification system continuously filtering transformer oil through a side-loop circuit to remove moisture and particles.
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